Glass-machine.



No; 685,281. Patented Oct. 29', I901;

- .1. JACKSON.

GLASS MACHINE.

(Application filed .7. 2a, 1900.)

(No lqdel.)

mu. c. J'HE uonms PETERS cc. PNOTO-LITHEL msnmo No. 685,28l. Patented Oct. 29, mm.

J. JACKSON. GLASS MACHINE.

(Application filed Jan. 29, 1900.} (No Model.)

3 Sheets-Sheet 2.

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No. ss5,2ai.

Patented Oct. 29, I90l. J. JACKSON.

GLASS MACHINE.

(Application filed Jan. 29, 1900.)

3.Sheets$heet 3.

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UNITED STATES PATENT JoHN JACKSON, or ALLEGHENY, PENNSYLVANIA, ASSIGNOR on ONE-HALF TO BIDDLE ARTI-IURS, or PITTSBURG, PENNSYLVANIA.

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srncrrrcariombmin pm of easement No. 685,281, dated October 29, 1901.

Application filed January 29, 1 9 0t). Serial No. I (No model.

To all whom it may concern;

Be it known that I, JOHN J AOKSON, a citizen of the United States, residing at Benton avenue,Allegheny,in the county of Allegheny and State of Pennsylvania, have invented or discovered a new and useful Improvement in Glass-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, 1

forming part of this specification, in which- Figure 1 is a view in side elevation of a glasspressing machine provided with my improved mechanism. Fig; 2 is a view in front elevation. Fig. 3 is a partial view,in side elevation, showing the parts in reversed position. Fig.4 isa cross-sectionalview taken on the line IV IV of Fig. 3. Fig. 5 is a similar view taken on the line V V ofFig. 3. Fig. 6 is a longitudinal sectional view taken on the line VI VI of Fig. 3. Fig. 7 is a detail plan View of the release-valve-operating device. Fig. 8' is a similar View showing a modified construction and illustrating the application thereof to the cylinder.

My invention relates to improvements in apparatus for forming gla'ss articles, and has particular-reference to that class of molding and pressing machinery wherein a number of.

movements and operations are performed successively or simultaneously, receiving their initial motion from the partial rotation of an actuating-shaft. 4

The present invention relates more particu larly to improvements on a machine for makingarticles. of glassware for which Letters Patent of the United States wereissued to John J. Power February 14, 1899, No. 619,694, and has reference to means for imparting a partial rotary movement to the main shaft (1 of said patent.

Heretofore' the usual practice has been to operate the power-shaft by manual power exerted through a hand-lever secured to the shaft; but in the continuous operation of a glass-machine this work is laborious and exhaustive, while requiring considerable skill and entailing additional expense. I have utilized compressed air for this purpose, and

to the side of the main frame 2 of the machine is secured a cylinder 3 by bolts or in any suitable or convenient manner, within which cylinder is mounted a piston 4: on rod 5, passing through stufling-box 6 and secured in a sliding cross-head 7. This cross-head, as will beseen, is of considerable length, giving rigidity and strength, and has a dovetail bearing in the outer face of the cylinder and in a slide 8 in advance of the cylinder, which,

a stud-bolt 14,projecting outwardly from the middle body'portion of the sliding cross-head 7. In the position shown in Fig.1, 'with the rod extended, the link 12 occupies a position adapted to the lowered position of the crank, while in the reversed position, (shown in Figs. 3 and 6,) wherein the crank is disposed in a position approximating a right angle to the center line of the cylinder, the link assumes a horizontal position. In this reversed position the operative'portions of the machine are performing the final pressing actions requiring the maximum of power, and it will be observed that by my arrangement of the parts I secure a corresponding maximum of leverage. Air-pressure is applied to either end of the cylinder through pipes 15 16,1eading from a controlling-valve 17, provided with a handle 18, located in convenient position for the operator, the valves being connected with supply-pipe 19. v A

For the purpose of providing an accurate means for limitingthe stroke of the piston in either direction, so as to prevent excess travel of the cross-head and a consequent overpressure of the plunger, &c., I have provided a petcock 21, located about midway 5 of the cylinder,-preferably at its under portion, whereby it will drain the cylinder on either side of the piston. This cock has an arm 22, pivotally connected with a sliding bar 23, mounted in bearings 24 of the cylinder,

and provided with two adjustable stops 24' in the path of movement of a knocker-arm 25, secured upon the face of the cross-head. At each operation of the cross-head forward and back this knocker-arm will come into contact with one or the other of the stops 24, moving the bar 23 and arm 22, opening the valve 21, and releasing the pressure in the cylinder.

By setting the stops in or out the exact degree of exhaust required may be ascertained I and secured with absolute certainty, thus relieving the operator from the necessity of great care in the operation of the valve and preventing excessive pressure or damage to any of the parts.

In Fig. 8 I have shown another arrangement for exhausting the cylinder, wherein I employ check-valves 29, provided with stems 26, projecting outwardly, moving springs 27 to hold the valves to their seats. The stems of the valves are operated alternately by pivoted arms 28, secured to each end of shifting bar 23. By setting the stops 24' it will be seen that the valves will be opened at the desired portion of the stroke in either direction to release the cylinder. In place of the disk (1 I have shown a double-ended crankarm', to which is secured at the forward end the link q, connecting with bell-crank lever r, from which, through link 1', reciprocating motion is imparted to the cross-head s, bearing the receiver 8 for the press-mold, and also the tripping-rod u At the other end of the crank is pivotally secured the lower end of connecting-rod 19 the upper end of which is joined to the forked lever 19, by which the upper cross-head k, lower cross-head 10, head or rotatable disk Z, and. plungers m are operated.

The advantage of my invention will be appreciated by those skilled in the art, as by its use the operation of those parts of the machine requiring the greatest power is rendered comparatively easy, whilebeing at all. times under complete control of the operator.

While I have shown my improvement as applied to the particular type of machine illustrated and described, it is obvious that it is likewise applicable to any design of machinery wherein the power for the various motions is furnished from a partially-rotating lever or shaft. It will be understood also that the design, proportions,and arrangement of parts may be varied by the skilled mechanic without departing from my invention, and I desire to include all such changes as within the scope of my invention and as covered by the following claims.

I claim 1. In a machine for making glassware,mechanism for operating the same consisting of a cylinder, a piston therein, a piston-rod, a cross-head secured to the piston-rod and having a portion adapted to slide in slideways in'advance of the cylinder and on the frame of the machine and another portion adapted to slide in slideways on the side of the cylin- 7'0 inder, and connections between the cross-head and the operative mechanism of the machine.

2. In a machine formaking glassware,mech-' anism for operating the same, consisting of a cylinder, a valve for controlling the admission of the actuating fluid to the cylinder, a piston in the cylinder, a piston-rod, a cross-- head secured to the piston-rod and having a portion adapted to slide in slideways in ad vance of the cylinder and on the-frame of the machine and another portion adapted to slide in slideways on the side of cylinder, and con nections between the cross-head and the op erative mechanism of the machine.

3. Inamachine for making glassware,mecl1- anism for operating the same consisting of a cylinder, a valve for controlling the admis-- sion of the actuating fluid to the cylinder, an exhaust-valve and means by which the same is automatically operated, a piston in the cyl- 9o inder, a piston-rod across-head secured to the piston-rod and having a portion adapted to slide in slideways in advance of the cylinder and on the frame of the machine and another" ;portion adapted to slide in slideways on the side of the cylinder, and connections between the cross-head and the operative mechanism of the machine.

4. In a machine for making glassware,-a-ro Itating shaft and actuating-crank therefor, a' 106 cylinder mounted on the frame of the ma- ',chine, a piston, a pisto-n-rod,-across-head'se- 'fcured to the rod, a slideway for a portion of 'the cross-head mounted on the frame of the i machine in advance of the cylinder, aslider65 Way on the side of the cylinder for another portion of the cross-head, and a link pivotally connected to the'cross head' andto'the shaft-- actuating crank.

5. In a machine for making glassware,-a ro'- 11'6- tating shaft and actuating-crank therefor, a cylinder mounted on the frame of the machine, a piston, a piston-rod, a cross-headsecured to the rod, a slideway for a portion of the cross-head mounted on the frame'of the 113 machine in advance of the cylinder and a slideway on the side of the cylinder for an"- other portion of the cross-head, both slide Ways being provided with adjustable bearings, and a link pivotally connected to the cross-head and to the shaftactuating crank.

6. In a machine for making glassware, a rotating shaft and actuating-crank therefor, a cylinder mounted on the frame of the machine, a piston, a piston-rod, a cross-head se- 12 5 cured to the rod, a slideway for a portion of the cross head mounted on the frame of the machine in advance of the cylinder and a slideway on the side of the cylinder for another portion of the cross-head, adjustable 1 o bearings for said slideways, a link pivotally connected to the cross-head and tothe shaftactuating crank, and a valve mounted on the cylinder and provided with an operating-handle for controlling the admission of the actuating fluid to the cylinder.

7. In a machine for making glassware, a fluid-actuated piston mounted in a cylinder, a piston-rod, a cross-head and connections therewith for transmitting motion to the mold and plunger operating mechanisms; a release- 10 valve located at each end of the cylinder; and

mechanism for operating the valves actuated by a movable abutment connected with the cross-head.

In testimony whereof I have hereunto set my hand.

- JOHN JACKSON.

In presence of- PETER J. EDWARDS, O. M. CLARKE 

